<?php
/**
 * Created by PhpStorm.
 * User: Administrator
 * Date: 14-5-15
 * Time: 下午2:49
 */
/**
 * 处理插件钩子
 * @param string $hook   钩子名称
 * @param mixed $params 传入参数
 * @return void
 */
function hook($hook,$params=array()){
	\Think\Hook::listen($hook,$params);
}

function synMatch($str){
	$match = str_replace('" reload="1"></script><script type="text/javascript" src="', '|', $str);
	$match = str_replace('<script type="text/javascript" src="', '', $match);
	$match = str_replace('" reload="1"></script>', '', $match);
	return $match;
}

/**
 * 获取Discuz Block模块数据
 * @param $bid
 * @return mixed
 */
function block($bid){
	return curl(DISCUZ_URL.'/extend/block.php?bid='.$bid);
}

/**
 * 网络信息采集
 * @param $url
 * @param int $timeout
 * @return mixed
 */
function curl($url, $timeout=5){
	$ch = curl_init();
	curl_setopt ($ch, CURLOPT_URL, $url);
	curl_setopt ($ch, CURLOPT_RETURNTRANSFER, 1);
	curl_setopt ($ch, CURLOPT_CONNECTTIMEOUT, $timeout);
	$file_contents = curl_exec($ch);
	curl_close($ch);
	return $file_contents;
}

/**
 * 表单HASH验证
 * @return bool
 */
function checkToken($hash = '__hash__'){
	$hash = key($_SESSION['__hash__']).'_'.$_SESSION['__hash__'][key($_SESSION['__hash__'])];
	if($_POST[$hash] == $hash)
		return true;
	else
		return false;
}

function printJson($param){
	header('Content-Type: application/json; charset=utf-8');
	echo getJson($param);
}

/**************************************************************
 *  将数组转换为JSON字符串（兼容中文）
 *  @param  array   $array      要转换的数组
 *  @return string      转换得到的json字符串
 *  @access public
 *************************************************************/
function getJson($array){
	//$array = (!in_array(C('DEFAULT_CHARSET'), array('utf-8', 'UTF-8')))?convert_encoding($array, C('DEFAULT_CHARSET'), "UTF-8"):$array;
	arrayRecursive($array, 'urlencode', true);
	return urldecode(json_encode($array));
}

function arrayRecursive(&$array, $function, $apply_to_keys_also = false){
	static $recursive_counter = 0;
	if (++$recursive_counter > 1000) {
		die('possible deep recursion attack');
	}
	foreach($array as $key => $value){
		if(is_array($value)){
			$this->arrayRecursive($array[$key], $function, $apply_to_keys_also);
		}else{
			$array[$key] = $function($value);
		}
		if($apply_to_keys_also && is_string($key)){
			$new_key = $function($key);
			if ($new_key != $key) {
				$array[$new_key] = $array[$key];
				unset($array[$key]);
			}
		}
	}
	$recursive_counter--;
}

/**
 * 转化函数，用它代替原本的json_encode函数，可以对汉字进行转化，排除了出现null的问题
 * @param $value
 * @param int $options
 * @return string
 */
function tb_json_encode($value, $options = 0){
	return json_encode(convert_encoding($value, "GBK", "UTF-8"));
}

/**
 * 同上，他是把原本转化成字符串的函数重新转化为数组（在使用时参数$assoc应为true，才是数组），转化后编码格式变为GBK
 * @param $str
 * @param bool $assoc
 * @param int $depth
 * @return string
 */
function tb_json_decode($str, $assoc = false, $depth = 512) {
	return onvert_encoding(json_decode($str, $assoc), "UTF-8", "GBK");
}

/**
 * 编码转化函数，主要用于进行编码的转化
 * @param $m
 * @param $from
 * @param $to
 * @return string
 */
function convert_encoding($m, $from, $to) {
	switch(gettype($m)) {
		case 'integer':
		case 'boolean':
		case 'float':
		case 'double':
		case 'NULL':
			return $m;
		case 'string':
			return iconv($from, $to, $m);
		case 'object':
			$vars = array_keys(get_object_vars($m));
			foreach($vars as $key) {
				$m->$key = convert_encoding($m->$key, $from ,$to);
			}
			return $m;
		case 'array':
			foreach($m as $k => $v) {
				$m[convert_encoding($k, $from, $to)] = convert_encoding($v, $from, $to);
			}
			return $m;
		default:
	}
	return $m;
}

function _authcode($string, $operation = 'DECODE', $key = '', $expiry = 0) {
	$ckey_length = 4;

	$key = md5($key ? $key : UC_KEY);
	$keya = md5(substr($key, 0, 16));
	$keyb = md5(substr($key, 16, 16));
	$keyc = $ckey_length ? ($operation == 'DECODE' ? substr($string, 0, $ckey_length): substr(md5(microtime()), -$ckey_length)) : '';

	$cryptkey = $keya.md5($keya.$keyc);
	$key_length = strlen($cryptkey);

	$string = $operation == 'DECODE' ? base64_decode(substr($string, $ckey_length)) : sprintf('%010d', $expiry ? $expiry + time() : 0).substr(md5($string.$keyb), 0, 16).$string;
	$string_length = strlen($string);

	$result = '';
	$box = range(0, 255);

	$rndkey = array();
	for($i = 0; $i <= 255; $i++) {
		$rndkey[$i] = ord($cryptkey[$i % $key_length]);
	}

	for($j = $i = 0; $i < 256; $i++) {
		$j = ($j + $box[$i] + $rndkey[$i]) % 256;
		$tmp = $box[$i];
		$box[$i] = $box[$j];
		$box[$j] = $tmp;
	}

	for($a = $j = $i = 0; $i < $string_length; $i++) {
		$a = ($a + 1) % 256;
		$j = ($j + $box[$a]) % 256;
		$tmp = $box[$a];
		$box[$a] = $box[$j];
		$box[$j] = $tmp;
		$result .= chr(ord($string[$i]) ^ ($box[($box[$a] + $box[$j]) % 256]));
	}

	if($operation == 'DECODE') {
		if((substr($result, 0, 10) == 0 || substr($result, 0, 10) - time() > 0) && substr($result, 10, 16) == substr(md5(substr($result, 26).$keyb), 0, 16)) {
			return substr($result, 26);
		} else {
			return '';
		}
	} else {
		return $keyc.str_replace('=', '', base64_encode($result));
	}

}

function _stripslashes($string) {
	if(is_array($string)) {
		foreach($string as $key => $val) {
			$string[$key] = _stripslashes($val);
		}
	} else {
		$string = stripslashes($string);
	}
	return $string;
}

function new_name($filename){
	$ext = pathinfo($filename);
	$ext = $ext['extension'];
	if ($ext=='jpg'||$ext=='gif'||$ext=='png'||$ext=='bmp')
	{
		$name = basename($filename,$ext);
		$name = md5($name.time());
		return array('Source'	=> $name.'.'.$ext,
		             'Thumb'		=> $name."_thumb.".$ext);
	}
	else
	{
		return;
	}
}